MONTANA BUREAU OF MINES AND GEOLOGY
A Department of Montana Tech of The University of Montana
Open File MBMG 511, Plate 1 of 1
Geologic Map, Ringling 30'x60' Quadrangle
MAP SYMBOLS
Contact: dashed where approximately
located; dotted where concealed
A'
Fault: unknown sense of movement; dotted
where concealed
Castle
Reverse or thrust fault: teeth on upthrown
block; dashed where approximately
located; dotted where concealed
Fla
Blackhawk
Stock
gs
ta f
f
Stock
'
Co
Indian Creek decollement—A plane of
sliding on which locally intensely folded
post-Precambrian rocks were thrust
eastward into the Crazy Mountains Basin
off the southeast margin of the Big Belt
Mountains in late Paleocene time (Skipp
and Hepp, 1968)
lC
Anti
rra
k
clin
ree
e
An
ticl
ine
Anticline: showing trace of axial plane and
plunge direction where known; dotted
where concealed
Gordon Butte
Ro
bin
Asymmetric anticline: showing trace of axial
plane; dotted where concealed, shorter
arrow on more steeply dipping limb
so
n
32
Strike and dip of inclined bed
An
tic
lin
tle
Bat
e
75
Horizontal bed
Lo
Vertical bed
Little Elk
Dome
we
Th
rus
t
k
ee
Cr
Fault Zone
Sill
Strike and dip of
overturned bed
th
Mo
ss
Dike (Ti): shown in red on map
Big Elk
Dome
Agate
Dikes/Sills (Ti): shown in red on map
An
Sills (Ti): shown in magenta on map
ticl
ine
Anticlin
Comb Creek
Stock(?)
Faul
t
Zone
e
A
Loco
Mountain
Anticline
Porcupine
Butte
WHITE
SULPHUR
SPRINGS
BIG
SNOWY
MOUNTAINS
TOWNSEND
RINGLING
HARLOWTON
BOZEMAN
LIVINGSTON
BIG TIMBER
MONTANA
Sill
100
0
100 Miles
Ringling
Faul
t
CANYON
FERRY DAM
M
idd
le
Hors
e
Bu
tte
Thrust
Anticline
Anticline
E lk h o rn
Basin
Thrust
Anticline
Fault
Ba
ttle
River
Cr
ee
k
100K Quad index
Potter
Fo
rk
Stock
Shields
t
rus
Th
Big
Timber
Campfire Lake
Stock
Stock
Base from U.S. Geological Survey
Ringling 30'x60' topographic quadrangle
Map date: 1993
Projection: UTM zone 12; 1927 NAD
Montana Bureau of Mines and Geology
Open File 511
Preliminary Geologic Map of the
Ringling 30' x 60' Quadrangle,
Central Montana
Partial support has been provided by the STATEMAP component of the National Cooperative Geologic
Mapping Program of the U.S.Geological Survey under Contract Number 03HQPR01980.
GIS production: Ken Sandau and Paul Thale, MBMG. Map layout: Susan Smith, MBMG.
Maps may be obtained from
Publications Office
Montana Bureau of Mines and Geology
1300 West Park Street, Butte, Montana 59701-8997
Phone: (406) 496-4167
Fax: (406) 496-4451
http://www.mbmg.mtech.edu
Compiled and mapped by Catherine McDonald,
David A. Lopez, Richard B. Berg,
and Richard I. Gibson
2005